As humans, we typically have 206 bones in our bodies (babies have almost 100 more, btw) – sharks, on the other hand, have between 200 and 400 cartilaginous structures.

Have you ever taken the time to imagine all the things that have to happen to rub your nose, or move from a lying down to a sitting position? Or ...

Bone conduction, however–or how we hear our own voice in real time–bypasses the middle ear altogether. It occurs when sound vibrations are transferred to the cochlea through the skull bones.